Originally posted by Squelchbelch
The 2 Karpov books cover pretty much everything. I have the Advance/Gambit Systems one & it is excellent.
This might be worth a try if you want less detailed but more general coverage:
http://tinyurl.com/59tls2
The two Karpov & Podgaets books cover the Advance and the Panov-Botvinnik Attack, but don't cover the 1.e4 c6 2.d4 d5 3.Nc3 classical main line Caro Kann, though clearly the intention was to eventually do so as mentioned on the back cover of the Advance Variation volume. It's possible Karpov wasn't willing to give up all his secrets in this opening just yet, but he must have had a three-book deal with Batsford he had to fulfill, and that explains the
How to Play the English Opening volume with the same production materials as the two Caro Kann books. I was really looking forward to an updated Classical Main Line coverage from Karpov (either with 3...Bf5 or 3...Nd7) but it looks like it may never come to pass.
Houska's book is a repertoire offering, covering the Main Line (...Bf5 with ...0-0), Panov Botvinnik, Exchange, Advance, Fantasy, 2.c4, Two Knights, King's Indian Attack, and a final chapter with a few unusual offerings.